JPH01260102A - Cooling asphalt pavement - Google Patents
Cooling asphalt pavementInfo
- Publication number
- JPH01260102A JPH01260102A JP8825888A JP8825888A JPH01260102A JP H01260102 A JPH01260102 A JP H01260102A JP 8825888 A JP8825888 A JP 8825888A JP 8825888 A JP8825888 A JP 8825888A JP H01260102 A JPH01260102 A JP H01260102A
- Authority
- JP
- Japan
- Prior art keywords
- water
- asphalt pavement
- pavement
- asphalt
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 72
- 238000001816 cooling Methods 0.000 title claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000009834 vaporization Methods 0.000 claims abstract description 9
- 230000008016 vaporization Effects 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 239000000843 powder Substances 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
- Road Repair (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はアスファルト混合物を敷均して転圧することに
より形成したアスファルト舗装体の冷却方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for cooling an asphalt pavement formed by leveling and rolling an asphalt mixture.
（従来の技術）
道路等の舗装材として用いられるアスファルト混合物は
砕石、砂、アスファルト等の材料を所定の比率で加熱混
合したものであり、例えば道路の舗装時には通常１１０
℃以上の状態でアスファルト混合物を敷均して転圧した
後７０〜９０℃以上の状態で仕上げてアスファルト舗装
体を形成している。(Prior Art) An asphalt mixture used as a paving material for roads, etc. is made by heating and mixing materials such as crushed stone, sand, asphalt, etc. in a predetermined ratio. For example, when paving roads, it is usually
The asphalt mixture is leveled and rolled at a temperature of 70 to 90°C or higher to form an asphalt pavement.
また、アスファルト舗装体の表面温度が略５０℃理上の
ときに交通に供すると、アスファルト舗装体の支持力が
小さく、車両走行によりアスファルト舗装体に初期ねだ
ち掘れや変形が発生し易いため、アスファルト舗装体の
表面温度が略５０℃未満になったときに交通に開放する
ようにしている。Additionally, if the asphalt pavement is subjected to traffic when its surface temperature is approximately 50°C, the supporting capacity of the asphalt pavement will be small, and initial rutting and deformation will easily occur in the asphalt pavement due to vehicle running. The asphalt pavement is opened to traffic when the surface temperature becomes less than approximately 50°C.
ところで、道路の補修工事のように道路の一部を交通規
制し舗装工事を行う場合、交通渋滞が発生し易いので、
アスファルト舗装体を迅速に冷却して早期に交通規制を
解除する必要がある。By the way, when paving a part of the road with traffic restrictions such as road repair work, traffic congestion is likely to occur.
It is necessary to quickly cool the asphalt pavement and lift traffic restrictions as soon as possible.
しかし、アスファルト舗装体の冷却を大気中及びアスフ
ァルト舗装体の下層等への自然放熱により行うと冷却時
間が長くなる。また、夏期の炎天下では真黒色を有する
アスファルト舗装体は太陽光からの吸熱が多く、かつ、
アスファルト舗装体の周囲温度が高いので、大気中及び
前記下層への自然放熱がアスファルト舗装体の温度が高
い状態で平衡し、工事終了後長時間の間交通規制を解除
できなかった。However, if the asphalt pavement is cooled by natural heat radiation into the atmosphere and the lower layer of the asphalt pavement, the cooling time becomes longer. In addition, under the scorching sun in summer, asphalt pavement, which is completely black in color, absorbs a lot of heat from sunlight, and
Since the ambient temperature of the asphalt pavement was high, natural heat radiation into the atmosphere and the lower layer was balanced with the asphalt pavement at a high temperature, and traffic restrictions could not be lifted for a long time after the construction was completed.
このため、従来においては、アスファルト舗装体を強制
的に冷却する方法が種々提案されている。For this reason, in the past, various methods have been proposed for forcibly cooling asphalt pavements.
すなわち、第１の冷却方法として、タイヤローラまたは
散水車等により大量の水をアスファルト舗装体の表面に
撒いてアスファルト舗装体を冷却するものがある。また
、第２の冷却方法として、アスファルト舗装体の表面に
白色粉体（例えば石灰石粉）を散布することによりこの
白色粉体にて太陽の輻射熱を反射させ、アスファルト舗
装体の太陽光からの吸熱を防止し、大気中及び下層等へ
の自然放熱によりアスファルト舗装体を冷却するものが
ある。さらに、第３の冷却方法として、本出願人が提案
したアスファルト表面に噴霧水を散布しつつ冷却するも
のがある。That is, as a first cooling method, there is a method in which a large amount of water is sprinkled on the surface of the asphalt pavement using a tire roller or a water truck to cool the asphalt pavement. In addition, as a second cooling method, by scattering white powder (for example, limestone powder) on the surface of the asphalt pavement, the white powder reflects the radiant heat of the sun, and the asphalt pavement absorbs heat from sunlight. There is a method that cools the asphalt pavement by natural heat radiation into the atmosphere and the lower layers. Furthermore, as a third cooling method, there is a method proposed by the present applicant in which the asphalt surface is cooled while being sprayed with water.
（発明が解決しようとする問題点）
しかしながら、第１の冷却方法では、多量の水を必要と
する上、散布された水が隣接した車線に流れ込むため、
その車線を走行する車両の運転手に心理的不安を与えて
いた。また、主として水の顕熱を利用して冷却するため
冷却効果が低く、水が流出、蒸発した後にはアスファル
ト舗装体の表面温度がもとの温度近くまで回復し、さら
に多量の水を散布しなければならず冷却時間が長くなっ
ていた。(Problems to be Solved by the Invention) However, the first cooling method requires a large amount of water, and the sprayed water flows into adjacent lanes.
This caused psychological anxiety to the drivers of vehicles traveling in that lane. In addition, since cooling mainly uses the sensible heat of water, the cooling effect is low, and after the water flows out and evaporates, the surface temperature of the asphalt pavement recovers to close to the original temperature, and even more water is sprayed. This resulted in a long cooling time.
第２の冷却方法では、太陽光からの吸熱は防止できるが
、大気中及び下層等への自然放熱によりアスファルト舗
装体を冷却するので冷却時間が長くなる。また、この方
法では、アスファルト舗装体の表面が白黒のアバタにな
って見栄えが悪く、交通開放前に白色粉体を洗い流す必
要があり、白色粉体が残存すると雨天時等のスリップの
原因となり易い。In the second cooling method, heat absorption from sunlight can be prevented, but since the asphalt pavement is cooled by natural heat radiation into the atmosphere and the lower layer, the cooling time becomes longer. In addition, with this method, the surface of the asphalt pavement becomes a black and white avatar, which is unsightly, and the white powder must be washed off before the road is opened to traffic, and if white powder remains, it is likely to cause slips during rainy weather. .
第３の冷却方法では、交通規制を早期に解除できるが、
噴霧装置を必要とし、また噴霧量の制御がむづかしく蒸
発量思上に噴霧水を散布すると路面に水腹を形成し効果
が悪くなる傾向もみちれる。With the third cooling method, traffic restrictions can be lifted early, but
It requires a spraying device, and it is difficult to control the amount of spray, and if the spray water is sprayed before the amount of evaporation is expected, a water belly will form on the road surface and the effectiveness will tend to deteriorate.
その他の冷却方法として、塊状のドライアイスを直接ア
スファルト舗装体の表面に放置するものがあるが、この
場合アスファルト舗装体が部分的に急激に冷却されるた
め熱応力が発生し、アスファルト舗装体にクラックが発
生し易かった。Another cooling method is to leave lumps of dry ice directly on the surface of the asphalt pavement, but in this case, the asphalt pavement is cooled rapidly in parts, causing thermal stress and causing damage to the asphalt pavement. Cracks were likely to occur.
また、粉粒状のドライアイスをアスファルト舗装体表面
に散布するものがあり、この場合には少量の散布のとき
に所望の冷却効果があるが、ドライアイスを粉粒状にす
る手間がかかり、然も粉粒状にすると昇華速度が早くな
りロスが多い。また、ドライアイスの冷気によりアスフ
ァルト舗装体を冷却するものがあり、この場合には冷気
がアスファルト舗装体の表面に均一に行き渡るが、冷却
効果が小さくかつ水に較べて高価で実用に適していなか
った。In addition, there is a method in which dry ice in the form of powder is sprinkled on the surface of the asphalt pavement, and in this case, the desired cooling effect is achieved when a small amount is sprinkled, but it takes time and effort to make the dry ice into powder, and If it is made into powder, the sublimation rate will be faster and there will be a lot of loss. In addition, there is a method that cools asphalt pavement using the cold air of dry ice. In this case, the cold air spreads uniformly over the surface of the asphalt pavement, but the cooling effect is small and it is expensive compared to water, so it is not suitable for practical use. Ta.
（問題点を解決するための手段）
本発明は、このような現状に鑑み、短時間でかつ冷却効
果の高いアスファルト舗装体の冷却方法を提供すること
を目的とする。(Means for Solving the Problems) In view of the current situation, an object of the present invention is to provide a method for cooling an asphalt pavement body in a short time and with a high cooling effect.
本発明は、アスファルト混合物より形成された高温のア
スファルト舗装体の表面に、該表面に接した固体媒体を
利用して、水分をその蒸発との略平衡を保ちつつ所望の
温度になるまで連続的または断続的に供給することによ
り該アスファルト舗装体の冷却を主として気化熱を利用
して行うことを特徴とするアスファルト舗装体の冷却方
法にある。The present invention utilizes a solid medium in contact with the surface of a high-temperature asphalt pavement formed from an asphalt mixture to continuously absorb water until the desired temperature is reached while maintaining approximately equilibrium with the evaporation of water. Alternatively, there is provided a method for cooling an asphalt pavement body, characterized in that the asphalt pavement body is cooled mainly by using heat of vaporization by intermittently supplying the asphalt pavement body.
本発明においては冷却すべきアスファルト舗装体の表面
に水分を供給するに際し、保水、浸透又は排水機能等の
表面水分量調節機能をもつ固体媒体を利用して該表面上
に存在する水分量を冷却操作中その蒸発量とほぼ均衡す
るように調節することにより、舗装体の冷却を主として
気化熱を利用して行うものであり、継続的または断続的
にこの操作を行うことによって舗装体内部まで冷却する
ものである。In the present invention, when supplying moisture to the surface of an asphalt pavement to be cooled, the amount of moisture present on the surface is cooled using a solid medium that has surface moisture control functions such as water retention, infiltration, and drainage functions. By adjusting the amount of evaporation during operation, the pavement is mainly cooled using the heat of vaporization, and by performing this operation continuously or intermittently, it is possible to cool the inside of the pavement. It is something to do.
本発明において水分をその蒸発との略平衝を保ちつつと
は冷却期間中水分の蒸発量に見合うように水分を供給す
ることをいい、具体的には冷却期間中表面に水膜が形成
されていないかまたは形成されていても全体からみてご
く短時間形成されているにすぎない状態で且つ常時水分
が蒸発している状態を維持するように水を供給する。In the present invention, "keeping moisture substantially in balance with its evaporation" refers to supplying moisture in an amount commensurate with the amount of moisture evaporated during the cooling period, and specifically, it means that a water film is formed on the surface during the cooling period. Water is supplied so as to maintain a state in which water is not formed or is formed only for a very short time in terms of the whole, and the state in which water is constantly evaporated.
このような操作は冷却期間中連続的に行うことが理想だ
が、断続的に行うこともできる。断続的とは冷却すべき
温度、周囲温度等によって異なるが、通常３回以上、好
ましくは５回以上同様の操作を繰り返すことをいう。Ideally, such operations should be performed continuously during the cooling period, but they can also be performed intermittently. Intermittently means repeating the same operation three or more times, preferably five or more times, although it varies depending on the temperature to be cooled, ambient temperature, etc.
本発明では上記の操作を固体媒体を利用することによっ
て行う。固体媒体としては保水性、浸透性又は排水機能
をもつものが好ましく用いられる。In the present invention, the above operations are performed using a solid medium. As the solid medium, one having water retention, permeability, or drainage function is preferably used.
保水性固体媒体の例としてはスポンジや布等がある。保
水性を利用してアスファルト表面への供給水量を水膜を
形成しない程度の少量に維持することができる。Examples of water-retaining solid media include sponges and cloth. Utilizing the water retention property, the amount of water supplied to the asphalt surface can be maintained at a small enough amount to prevent the formation of a water film.
浸透性固体媒体の例としてはそれ自体は保水性をもたな
いが、吸引機能と組合せることによって過剰水分を浸透
吸引することの可能な多孔性金属等がある。Examples of permeable solid media include porous metals that do not themselves have water retention properties, but can permeate and suction excess water when combined with a suction function.
排水機能を発揮できる固体媒体としては通常のレーキン
グ部材等があり、−旦幾分過剰量の水分を供給しその直
後にレーキングすることによって過剰水分を除去するこ
ともできる。Solid media that can perform the drainage function include ordinary raking members, and it is also possible to remove excess water by first supplying a somewhat excess amount of water and then immediately raking.
本発明では上記した如き冷却を舗装体が所望の温度にな
るまで連続的または断続的に行うことを要し、継続的ま
たは断続的に行うことによって舗装体内部まで冷却する
ことが可能である。ここで所望の温度は季節等によって
変わりうるが、通常少な（とも６０℃、好ましくは５０
℃である。In the present invention, it is necessary to perform the above-described cooling continuously or intermittently until the pavement reaches a desired temperature, and by performing the cooling continuously or intermittently, it is possible to cool down to the inside of the pavement. The desired temperature here may change depending on the season, etc., but it is usually a small temperature (60°C, preferably 50°C).
It is ℃.
（実施例）
以下に本発明の実施例を図面に基づいて説明するが、本
発明はこれらによって限定されろものではない。(Example) Examples of the present invention will be described below based on the drawings, but the present invention is not limited thereto.
アスファルト混合物を敷きならし装置により敷きならし
た後、ロードローラにより転圧仕上げし、アスファルト
舗装体１を形成する。この舗装体１に４区画を設け、夫
々、以下に示す方法によって舗装体の冷却を行った。After the asphalt mixture is spread by a spreading device, it is finished by rolling with a road roller to form an asphalt pavement 1. This pavement 1 was provided with four sections, and the pavement was cooled in each section by the method shown below.
すなわち、第１の方法は、第１図（ａｌに示すように、
円筒の外周に保水性のある厚さ１０ｃｍのスポンジマッ
トを取り付け、このマットに筒内より水を補給しながら
アスファルト舗装体上を移動させ、舗装体上に水膜を作
らない程度に水を供給し、この水の蒸発時の気化熱によ
ってアスファルト舗装体を冷却する方法である。That is, the first method is as shown in FIG.
A 10cm thick water-retentive sponge mat is attached to the outer circumference of the cylinder, and this mat is moved over the asphalt pavement while replenishing water from inside the cylinder, supplying water to an extent that does not form a water film on the pavement. In this method, the asphalt pavement is cooled by the heat of vaporization when this water evaporates.
第２の方法は、第４図に示すように、保水性を有す薄手
の白色本綿布をアスファルト舗装体表面に布設し、この
上から水分をその蒸発との平衡を保ちつつ供給し、白色
木綿布による太陽光の反射と、散布水分の気化熱により
アスファルト舗装体を冷却する方法である。The second method, as shown in Figure 4, is to lay a thin white cotton cloth with water-retentive properties on the surface of the asphalt pavement, and supply water from above while maintaining a balance with the evaporation of the white cotton cloth. This method cools asphalt pavement by reflecting sunlight from cotton cloth and by the heat of vaporization of sprayed water.
第３の方法は、本出願人が提案したアスファルト舗装体
表面に直接噴霧水をその蒸発との平衡を保ちつつ散布し
、その水分の蒸発時の気化熱によりアスファルト舗装体
を冷却する方法の１つで、本発明との効果の比較を行う
ため実施しな。The third method is one of the methods proposed by the present applicant in which water is directly sprayed onto the surface of the asphalt pavement while maintaining a balance with its evaporation, and the asphalt pavement is cooled by the heat of vaporization when the water evaporates. This experiment was conducted in order to compare the effects with the present invention.
第４の方法は、人為的な冷却手法によらず、自然放冷に
よるものであって、本発明との効果の比較を行うため実
施した。The fourth method is based on natural cooling without using an artificial cooling method, and was carried out in order to compare the effect with the present invention.
その結果、表−１および第５図に示すような実験データ
を得た。As a result, experimental data as shown in Table 1 and FIG. 5 was obtained.
すなわち第５図に示すように第４の方法の自然放冷では
、８０℃から５０℃に至る所要時間が、６９分間である
のに対し、第１〜２の方法では３３〜３８分間であり、
３１〜３６分間短くなっており、また第３の方法と同等
ないしは約１０分近く短く、本発明によるアスファルト
舗装体の冷却方法が、舗装体を冷却するのに十分効果の
あることが確認された。 −上記実験において、アス
ファルト舗装体が８０℃から５０℃に至るまでに使用さ
れた水量は、表１のとおり、第１〜２の方法では２００
〜２５０ ｍ ｌ ／ ｒｌであり、第３の方法より若
干水量は多くなるものの、従来行われているタイヤロー
ラまたは散水車等による路面散水に較べれば、きわめて
わずかであるといえ、水の補給の上からも極めて筒便と
いえる。That is, as shown in Fig. 5, in the fourth method of natural cooling, the time required to reach the temperature from 80°C to 50°C is 69 minutes, while in the first and second methods it takes 33 to 38 minutes. ,
The cooling time was 31 to 36 minutes shorter, and it was also the same as the third method or about 10 minutes shorter, confirming that the asphalt pavement cooling method according to the present invention is sufficiently effective in cooling the pavement. . - In the above experiment, the amount of water used to heat the asphalt pavement from 80°C to 50°C was 200°C for methods 1 and 2, as shown in Table 1.
~250 ml/rl, which is a slightly larger amount of water than the third method, but compared to conventional road watering using tire rollers or water trucks, it is extremely small and reduces the need for water replenishment. Even from the top, it can be said that it is extremely cylindrical.
また、本発明による第１〜第２の方法は、９Ｆｃ１ｍ、
湿度、風力、太陽光からの吸熱量、およびアスファルト
舗装体の温度など種々の条件により、夫々、アスファル
ト舗装体の冷却効果に若干の差異があろうが、いずれの
場合も自然放冷に較べれば十分効果的である。Further, the first and second methods according to the present invention include 9Fc1m,
There may be slight differences in the cooling effect of asphalt pavement depending on various conditions such as humidity, wind power, amount of heat absorbed from sunlight, and temperature of asphalt pavement, but in any case, compared to natural cooling, Effective enough.
なお、第１開山）、第２図、第３図は、本発明を実施す
るための他の例を示したものである。Note that FIGS. 1, 2, and 3 show other examples for carrying out the present invention.
第２図（ａｌに示す装置は、被牽引の２つの円筒に保水
性のある厚さ５ｃｍのスポンジマットをクローラ状に取
り付け、このマットにクローラ内側より水を補給しなが
らアスファルト舗装体上を移動させ、舗装体上に水膜を
作らない程度に水を供給し、この水の蒸発時の気化熱に
よってアスファルト舗装体を冷却する。The device shown in Figure 2 (al) attaches water-retaining sponge mats with a thickness of 5 cm to two towed cylinders in the form of a crawler, and moves over an asphalt pavement while replenishing water to the mats from inside the crawlers. Water is supplied to an extent that does not form a water film on the pavement, and the asphalt pavement is cooled by the heat of vaporization when this water evaporates.
また、第３図（ａ）に示す装置は、可動輪によって支え
られた梁に、保水性を有す厚さ１ｃｒ１１のスポンジマ
ットを、アスファルト舗装体と接するように懸垂させ、
このマットに上部より水を補給しながらアスファルト舗
装体上を移動させ、舗装体上に水膜を作らない程度に水
を供給し、この水の蒸発時の気化熱によってアスファル
ト舗装体を冷却する。In addition, the device shown in FIG. 3(a) suspends a water-retaining sponge mat with a thickness of 1 cr from a beam supported by movable wheels so as to be in contact with the asphalt pavement.
This mat is moved over the asphalt pavement while being supplied with water from above, water is supplied to an extent that does not form a water film on the pavement, and the asphalt pavement is cooled by the heat of vaporization when the water evaporates.
表−１
（発明の効果）
本発明方法は簡単な装置と操作によりアスファルト舗装
体を迅速に冷却することができ交通規制を早期に解除で
きるためその実用的効果は極めて大きい。Table 1 (Effects of the Invention) The method of the present invention has extremely great practical effects because it can rapidly cool asphalt pavement with simple equipment and operations, and traffic restrictions can be lifted early.
第１図〜第３図の各（ａ）、 （ｂ）は本発明を実施す
るための装置の一例を示す概略図、第４図は本発明を実
施するための方法を示す概略図、第５図は、アスファル
ト舗装体の冷却効果を示す実験データである。
１・・・・・・アスファルトｆｆａｌＡ体、２・・・・
・・スポンジマット、３・・・・・・水タンク、 ４・
・・・・・木綿布、 ５・・・・・・水分供給装置。
第１図
＼１
第５図
経通日間（分）Each of FIGS. 1 to 3 (a) and (b) is a schematic diagram showing an example of an apparatus for implementing the present invention, and FIG. 4 is a schematic diagram showing a method for implementing the present invention. Figure 5 shows experimental data showing the cooling effect of asphalt pavement. 1... Asphalt ffal A body, 2...
...Sponge mat, 3...Water tank, 4.
... Cotton cloth, 5 ... Moisture supply device. Figure 1 ＼1 Figure 5 Life cycle (minutes)
Claims (8)
ァルト舗装体の表面に、該表面に接した固体媒体を利用
して、水分をその蒸発との略平衡を保ちつつ所望の温度
になるまで連続的または断続的に供給することにより該
アスファルト舗装体の冷却を主として気化熱を利用して
行うことを特徴とするアスファルト舗装体の冷却方法。(1) Using a solid medium in contact with the surface of a high-temperature asphalt pavement formed from an asphalt mixture, water is continuously or A method for cooling an asphalt pavement, characterized in that the asphalt pavement is cooled mainly by using heat of vaporization by intermittently supplying the asphalt pavement.
項１記載の方法。(2) The method according to claim 1, wherein the solid medium comprises a water-retaining or permeable material.
面上を移動するよう可動体に取りつけられている請求項
２記載の方法。(3) The method according to claim 2, wherein the water-retaining or permeable member is attached to a movable body so as to move on the surface of the asphalt pavement.
２または３記載の方法。(4) The method according to claim 2 or 3, wherein the water-retaining or permeable member is roller-shaped.
項２または３記載の方法。(5) The method according to claim 2 or 3, wherein the water-retaining or permeable member is crawler-shaped.
たは３記載の方法。(6) The method according to claim 2 or 3, wherein the water-retaining or permeable member is strip-shaped.
作中アスファルト舗装体表面に布設してなる請求項１記
載の方法。(7) The method according to claim 1, wherein the water-retaining member is a thin cloth-like material and is laid on the surface of the asphalt pavement during the cooling operation.
その直後のレーキングとを断続的に繰りかえしてなる請
求項１記載の方法。(8) The method according to claim 1, wherein the solid medium is a raking member, and the supply of moisture and the subsequent raking are intermittently repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8825888A JPH01260102A (en) | 1988-04-12 | 1988-04-12 | Cooling asphalt pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8825888A JPH01260102A (en) | 1988-04-12 | 1988-04-12 | Cooling asphalt pavement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01260102A true JPH01260102A (en) | 1989-10-17 |
| JPH0584762B2 JPH0584762B2 (en) | 1993-12-03 |
Family
ID=13937851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8825888A Granted JPH01260102A (en) | 1988-04-12 | 1988-04-12 | Cooling asphalt pavement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01260102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100969867B1 (en) * | 2010-01-22 | 2010-07-13 | 박문선 | Device for modeling the road pavement |
| CN108252187A (en) * | 2016-12-28 | 2018-07-06 | 中国二十冶集团有限公司 | Concrete curing membrane laying system and laying method |
-
1988
- 1988-04-12 JP JP8825888A patent/JPH01260102A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100969867B1 (en) * | 2010-01-22 | 2010-07-13 | 박문선 | Device for modeling the road pavement |
| CN108252187A (en) * | 2016-12-28 | 2018-07-06 | 中国二十冶集团有限公司 | Concrete curing membrane laying system and laying method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0584762B2 (en) | 1993-12-03 |
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